import java.util.Scanner;

/**
 * DomWon
 * Created with Intellij IDEA.
 * Description:
 * User:WEI
 * Date:2023/3/4
 * Time:8:25
 */
public class Test {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        double height = scan.nextDouble();
        double weight = scan.nextDouble();
        double BMI = weight/(height*height);
        if(BMI < 18.5) {
            System.out.println("偏瘦");
        } else if (BMI>=18.5 && BMI<20.9) {
            System.out.println("苗条");
        } else if (BMI>=20.9 && BMI<=24.9) {
            System.out.println("适中");
        } else {
            System.out.println("偏胖");
        }
    }

    public static void main5(String[] args) {
        Scanner scan = new Scanner(System.in);
        int a = scan.nextInt();;
        if(a < 100) {
            System.out.println(a);
        } else if (a>=100 && a<500) {
            System.out.println(Test.typeConversion(a*0.9));
        } else if (a>=500 && a<2000) {
            System.out.println(Test.typeConversion(a*0.8));
        } else if (a>=2000 && a<=5000) {
            System.out.println(Test.typeConversion(a*0.7));
        } else {
            System.out.println(Test.typeConversion(a*0.6));
        }
    }

    public static int typeConversion (double a) {
        Double d = new Double(a);
        int ret = d.intValue();
        return ret;
    }

    public static void main4(String[] args) {
        Scanner scan = new Scanner(System.in);
        int a = scan.nextInt();;
        int b = scan.nextInt();
        int tmp = a;
        a = b;
        b = tmp;
        System.out.println(a+" "+b);
    }

    public static void main3(String[] args) {
        Scanner scan = new Scanner(System.in);
        double a = scan.nextDouble();
        double num = a % 1;
        if(num>0.5) {
            System.out.println(Test.typeConversion(a)+1);
        } else {
            System.out.println(Test.typeConversion(a));
        }
    }



    public static void main2(String[] args) {
        Scanner scan = new Scanner(System.in);
        int a = scan.nextInt();
        int b = scan.nextInt();
        if(a > b) {
            System.out.println((a+b)+" "+(a-b)+" "+(a*b)+" "+(a/b)+" "+(a%b));
        } else {
            System.out.println((b+a)+" "+(b-a)+" "+(b*a)+" "+(b/a)+" "+(b%a));
        }
    }


    public static void main1(String[] args) {
        Scanner scan = new Scanner(System.in);
        double a = scan.nextDouble();
        System.out.println(Test.typeConversion(a));
    }


}
